Injection apparatus for an industrial machine
a technology of injection apparatus and industrial machine, which is applied in the direction of auxillary shaping apparatus, manufacturing tools, food shaping, etc., can solve the problem that there are still limitations to the requirement of high-speed injection, and achieve the effect of greatly increasing the injection drive force and greatly increasing the injection speed
Inactive Publication Date: 2006-03-14
TOSHIBA MASCH CO LTD
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Benefits of technology
The present invention provides an injection apparatus for industrial machines that can achieve high-speed injection. The apparatus includes an injection barrel, a screw for injection, a support means, and a drive mechanism for moving the support means in a reciprocating motion. The apparatus can also have a plunger instead of a screw and may use electric servomotors and ball screw and ball nut arrangements for the drive mechanisms. The combination of roller screw, linear motor, and hydraulic or pneumatic actuator can also be used for the drive mechanisms. The technical effect of the invention is to increase injection speed and drive force by moving the first drive mechanism through the second drive mechanism.
Problems solved by technology
Even in such injection apparatus for injection molding machine of the type with the electric drive system, there still exists limits as to the requirement for a high speed injection capable of molding the mold material mentioned above while still producing a high quality molded article.
Method used
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Embodiment Construction
[0020]The embodiments will be explained below with reference to the accompanying drawings.
[0021]FIG. 1 shows a front view of the injection apparatus for injection molding machine of the type with the electric drive system of the present invention.
[0022]As shown in FIG. 1, there is provided an injection apparatus arranged over a structural member 10 which is stationed on a base (not shown) of the injection molding machine of the type with the electric drive system.
[0023]Reference numeral 12 designates a barrel that forms an injection tube, and supported by a barrel support member 16. At the most left end of the barrel 12, a nozzle NZ is mounted. In the barrel 12, a screw 14, operating as a pushing member, is inserted so as to be capable of reciprocating motion in the direction of the screw axis. The right most end of the screw 14 is held on a screw support member 20 that is slidably supported by a guide rod 18, so that the screw 14 is capable of rotating and restricted from moving in...
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Abstract
An injection apparatus for industrial machine capable of high speed injection is provided with an injection barrel communicating with a cavity formed by at least a pair of mold dies and introducing mold material to an end portion on communicating side of the barrel, a screw for injection inserted in the barrel in which the screw is capable of reciprocating motion so as to inject and fill the mold material into the cavity, a support means holding an end of the screw opposite to the cavity and capable of moving in the direction of the reciprocating motion, a first drive mechanism including an electric servomotor for moving the support means in the direction of the reciprocating motion and a second drive mechanism for moving the first drive mechanism in the direction of the reciprocating motion.
Description
BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to an injection apparatus for industrial machines such as plastic injection molding machine or die casting machine, specifically to the injection apparatus capable of molding an article with high quality by improving injection speed thereof.[0003]2. Description of Related Art[0004]The quality of a molded article is affected by the injection speed and pressure during injecting and filling in the industrial machine in which the mold material, such as melt resin or metal, is injected and filled into a the cavity formed within a mold die of the machine.[0005]Incidentally, the cavity shape in the mold die is may be of various kinds, in accordance with the mold articles. As such, the function and capability of the injection speed, pressure, etc. required by the injection apparatus greatly vary.[0006]On the other hand, because of the requirement for noiseless, cleanliness, good controllability, an...
Claims
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IPC IPC(8): B29C45/80B29C45/17B29C45/50
CPCB29C45/5008B29C45/1761
Inventor NISHIZAWA, MAKOTOKOBAYASHI, KAZUHITOKAWAI, JUNSUKE
Owner TOSHIBA MASCH CO LTD